Find the frequencies of the first three harmonics of a piano string of length 1.5m, if the velocity of the wave on the string is 120ms-1

okiki007

2 months ago

so correct

Anela

3 months ago

V= f × 2l

V= 120
f=?
2l=2×1.5
= 3

120=3f
f=120/3
= 40


NOW
f1=40
f2=2×40
= 80
f3=3×40
=120

agboola2005

4 years ago

This is wrong.
V=Fl
120=1.5F
F=80Hz
:Fo =80
2Fo =160
3Fo=240